ML18153B231

Forwards 1994 Annual SG ISI Rept for Surry Power Station, Units 1 & 2,in Accordance W/Ts 4.19.F.b

ML18153B231
Person / Time
Site:	Surry
Issue date:	02/20/1995
From:	Bowling M VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
95-004, 95-4, NUDOCS 9502240297
Download: ML18153B231 (16)

Text

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VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 February 20, 1995 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 Serial No.95-004 NL&P/RPC Docket Nos. 50-280 50-281 License Nos. DPR-32 DPR-37 1994 ANNUAL STEAM GENERATOR INSERVICE INSPECTION REPORT In accordance with the requirements of Technical Specification 4.19.F.b, Virginia Electric and Power Company submits herewith the 1994 Steam Generator lnservice Inspection Report for Surry Power Station Units 1 and 2. There is no information provided for Unit 2 because there were no steam generator tube inspections performed for Unit 2 during the calendar year 1994.

During the 1994 refueling outage for Surry Power Station Unit 1, the tubes in the "B" steam generator were examined. The information in Attachment 1 is a summary of the results of those examinations. These results include the number and extent of the tubes examined, location and characterization of each indication of an imperfection, and identification of the tubes that were plugged. Attachment 2 provides a glossary of the terms used in the report. Attachment 3 includes Surry Power Station Unit 1 tubesheet maps indicating plugged tubes, hot leg bobbin indications, cold leg bobbin indications, and rotating pancake coil test locations.

Should you require additional information, please contact us.

Very truly yours, IN~~

M. L. Bowling, Manager Nuclear Licensing and Programs Attachments

1. 1994 Annual Steam Generator lnservice Inspection Report for Surry Unit 1.

2. Glossary of Terms.

3. Tubesheet Maps.

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U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, N.W.

Suite 2900 Atlanta, Georgia 30323 Mr. M. W. Branch NRC Senior Resident Inspector Surry Power Station

e ATTACHMENT 1 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 1 1994 ANNUAL STEAM GENERATOR INSERVICE INSPECTION REPORT VIRGINIA ELECTRIC AND POWER COMPANY

e SURRY UNIT-1 STEAM GENERATOR "B" 1994 EDDY CURRENT EXAMINATION ROW COL IND LOC COMMENTS 19 7

SAA 6H 31 14 SAA 6H 3

15 14 2H 6

16 10 2C 23 17 MAA 6H 34 17 24 AV4 TUBE PREVENTIVELY PLUGGED 35 17 16 AV3 24 18 SAA 6H 34 19 22 AV2 TUBE PREVENTIVELY PLUGGED 31 21 SAA 4C 33 21 17 7H 38 21 19 AV1 24 23 SAA BPH 39 23 19 AV3 TUBE PREVENTIVELY PLUGGED 39 23 20 AV4 TUBE PREVENTIVELY PLUGGED 34 24 SAA 6C 13 26 SAA 2H 28 26 SAA TSC 20 28 10 SH 26 28 11 6H 27 28 SAA 4H 39 29 11 6H 41 29 14 SH 42 29 18 AV2 1

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SURRY UNIT-1 STEAM GENERATOR "B" 1994 EDDY CURRENT EXAMINATION ROW COL IND LOC COMMENTS 42 29 SAA 7H 25 31 MAA 6H 43 31 21 AV2 TUBE PREVENTIVELY PLUGGED 13 32 SAA TSH 33 32 SCA 6C 15 34 SCA 1C 24 34 SAA BPH 3

35 SAA TSH 15 35 SCA 2C 1

36 SAA TSH 33 36 SAA 4H 10 37 19 3H 15 37 19 1C 36 38 SCA 6C 36 38 SCA TSC 38 38 18 6H 9

39 SAA TSH 11 40 10 SC 20 40 SAA TSH 1

41 SAA TSC 17 41 13 6H 21 42 SAA TSH 3

43 SAA TSH 6

43 SAA TSH 2

SURRY UNIT-1 STEAM GENERATOR "B" 1994 EDDY CURRENT EXAMINATION ROW COL IND LOC COMMENTS 39 43 SAA 7H 45 43 11 1C 21 44 SAA TSH 2

45 SAA TSH 5

45 MAA TSH 7

45 SAA 2C 13 46 SAA TSH 36 46 SCA JC 3

47 SAA TSH 45 47 SAA TSC 6

48 SAA JC 15 48 SAA 7C 21 48 SAA lC 45 48 SAA TSC 11 49 16 2C 12 49 SAA TSH 20 49 SAA lC 13 50 SAA TSH 28 51 SAA lC 22 52 SAA 2C 27 52 SAA 6C 40 52 18 TSC 41 52 15 7C 3

SURRY UNIT-1 STEAM GENERATOR "B" 1994 EDDY CURRENT EXAMINATION ROW COL IND LOC COMMENTS 46 52 10 6C 46 52 SAA 6C 7

53 14 TSC 43 53 SAA 5C 40 54 SAA 2C 16 55 SAA SC 45 55 10 BPH 45 55 11 AV4 3

56 SAA TSH 25 56 MAA 3C 3

57 SAA TSH 37 57 11 2C 37 57 13 2C 1

58 SAA TSC 4

58 11 2C 11 58 SAA TSH 20 58 MAA 6C 34 58 16 AV2 11 59 SAA 3C 16 59 18 7C 43 59 SCA 7C 28 62 SAA BPC 1

63 SAA SH 32 63 SAA 2H 43 64 SAA 7C 4

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SURRY UNIT-1 STEAM GENERATOR 11B11 1994 EDDY CURRENT EXAMINATION ROW COL IND LOC COMMENTS 5

66 SAA TSH 7

66 SAA TSH 13 66 SAA TSH 24 66 SAA 4H 4

67 16 4C 7

67 MAA 4C 14 67 16 2C 21 67 10 6C 39 67 SAA 2C 7

68 SAA TSH 26 68 SAA lC 26 69 12 6H 36 69 SAA 4C 16 70 15 2C 29 70 12 AV4 32 70 12 TSH 40 70 10 AV3 8

71 SCA TSH 2

72 SAA 4C 11 72 SAA TSC 13 74 16 2H 13 74 SAA lC 33 75 19 AV4 3

79 16 2C 5

e SURRY ONIT-1 STEAM GENERATOR "B" 1994 EDDY CURRENT EXAMINATION ROW COL IND LOC COMMENTS 31 79 10 2H 27 80 12 6H 13 83 18 2C 17 83 MAA 6C 25 83 SAA TSH 28 83 SAA 7H 4

85 16 SC 19 87 16 4C 2

88 14 2C 4

89 SAA 2C 15 89 17 TSC 13 90 MAA 6C 13 90 SAA 2C 18 90 19 TSC 18 90 SAA 6C 6

e ATTACHMENT 2 GLOSSARY OF TERMS SURRY POWER STATION ANNUAL STEAM GENERATOR INSERVICE INSPECTION REPORT VIRGINIA ELECTRIC AND POWER COMPANY

1.

e VIRGINIA ELECTRIC AND POWER COMPANY QTBQ GEHERATOR __ IJDDY CURREBT TUBB INSPECTION GLOSSARY OF TERMS

ROW, COL COLUMN tube identifier numbers coordinate system.

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2.

IND INDICATION Character codes and numerics that

3.

4.

represent the analysis results of the data for that tube, e.g.,

SAA, 25%,

etc.

LOCN LOCATION The location in the tube of the INDICATION called.

MAA MULTIPLE AXIAL ANOMALY Describes multiple axially oriented anomalies.

5.

55 A number in the indication column shows the%

through wall depth of the indication.

6.

SAA

7.

SCA 8

TEH

9.

TEC

10.

TSH

11.

TSC Describes a single axially oriented anomaly.

Describes a single circumferentially oriented anomaly Tube End Hot leg.

Tube End Cold leg.

Top of Tubesheet Hot leg.

Top of Tubesheet Cold leg.

12.

BPH, BPC BAFFLE PLATE HOT AND COLD

13.

1. C,

1. H

(#=number) of Support Plate Hot or Cold leg.

e.g., 3H, 6H, 7C.

14.

AVl, AV2, AV3, AV4 Anti-Vibration Bars 1 through 4.

Note: Where no comment appears in the remarks column the tube is still in service.

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ATTACHMENT 3 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 1 TUBESHEET MAPS VIRGINIA ELECTRIC AND POWER COMPANY

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